Use TaskScheduler::InitParams to initialize TaskScheduler in child processes.

content/public/renderer/content_renderer_client.cc

 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "content/public/renderer/content_renderer_client.h"
 
 #include "content/public/renderer/media_stream_renderer_factory.h"
 #include "media/base/renderer_factory.h"
 #include "ui/gfx/icc_profile.h"
 #include "url/gurl.h"
@@ skipping 204 matching lines @@
 }
 
 bool ContentRendererClient::ShouldEnforceWebRTCRoutingPreferences() {
   return true;
 }
 
 GURL ContentRendererClient::OverrideFlashEmbedWithHTML(const GURL& url) {
   return GURL();
 }
 
+std::unique_ptr<base::TaskScheduler::InitParams>
+ContentRendererClient::GetTaskSchedulerInitParams() {
+  return nullptr;
+}
+
 bool ContentRendererClient::AllowMediaSuspend() {
   return true;
 }
 
 }  // namespace content